Caster-wheel.



J (1?. L. UHL.

GASTER WHEEL.

APPLIGATION rum) JULY 20, 1908.

Patented Mar. 23, 1909.

UNITED STATES PATEN T OFFICE.

JOSEPH F. L. UHL, OF TOLEDO, OHIO.

(EASTER-WHEEL.

Specification of Letters Patent.

Patented March 23, 1909.

To all whom it may concern:

Be it known that I, JosEPH F; L. UHL, a citizen of the United States, residin at T0- ledo, in the county of Lucas and tate of Ohio, have invented certain new and useful Improvements in Caster-Wheels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to im rovements in caster wheels adapted especially for use on typlewriter and adding-machine stands, and it as for its object to provide in a caster wheel improved means for mounting the rim or tread of the wheel to hold the same from upon a bracket of ordinary construction;

Fig. 2 is a front elevation of the same; Fig. 3

is a face view of one of the sheet steel plates adapted to clamp the body of the wheel between them, the inwardly deflected pointed portions being shown thereon; Fig. 4 is a perspective view of the same plate; and Fig. 5 is a view'of the metal parts of the caster wheel,

thesame being shown prior to assembling.

Referring to the drawings, the caster wheel comprises two like perforated sheet steel disks 1 and 1 connected by a central bearing sleeve 2 and having pointed triangularsha ed portions 3 and 3 struck from the body of the disks near their outermargins at equal angular distances, and these pointed portions in the operation of forming the disks by means of suitable dies are deflected so as to project inwardly perpendicular to the body of the disks and present flat bearing faces a and a, the disks 3 and 3' being assembled in parallel relation to cause the faces wand a to assume alternate positions, as shown in Fig. 5.

The body 4 of the caster wheel the outer margin of which constitutes the tread of the wheel, is made of leather, Wood-pulp composition, or analogous tough material, and is secured between the disks 1 and 1 by forcibly pressing the disks toward each other by means of a suitable press, the deflected portions being disposed alternately as in Fig. 5, the inwardly pointed ends of the deflected portions bein forced into the body 4 which is inter osed etween them. When thus assemble the ends 5 of the bearing sleeve 2 which extends centrally through the disks and the body, isupset to maintain the disks and the body in flrm assembled relation, there being also washers 6 held in firm contact with the outer faces of the disks by the upset ends of the bearing sleeve, the washers serving to hold the sides of the wheel from contact with the arms 7 of the bracket 8 which carries the bearing spindle 9 upon which the sleeve of the caster wheel is mounted for rotation. It is thus seen that the tread or outer mar in of the body 4 is firmly supported by the Eat faces presented by the deflected portions 3 and 3, and since these deflected ortions are arranged alternately in assemb ing the caster wheel, there is an almost continuous annular bearing portion for the tread upon which the strain is directed when the wheel is in use, the center bearing sleeve being practically free from pressure of the body 4 thereon.

Having described my invention, what I claim and desire to secure by Letters Patcut, is

A caster wheel consisting of a body of tough, fibrous, inelastic material the outer margin of which constitutes the tread, and apair of sheet metal disks on opposite sides of the body having portions struck therefrom within the margin and deflected inwardly to enter the body and present flat expanded faces tosupport the tread, the deflected portions being arranged alternately relative to each other, substantially as described.

In testimony whereof, I hereunto affix my signature, in presence of two witnesses.

JOSEPH F. L. UHL.

Witnesses:

CARL H. KELLER, GRANT WILLIAMS. 

